Case of gilt brass, signed: Jan Jansen Bockels Inv et Sculpt Movement of gilt brass and steel, partly blued, signed: Ian Ianssen Bockeltz van Aecken. Dutch (Haarlem), ca. 1605-1610 The engravings on the dial personify the Four Seasons. The dial also shows the phases and age of the moon in its monthly cycle, the day of the month, and the number of days in each month. The sundial inside the cover can be used for setting the watch. The disk for setting the alarm is a replacement, as are the hands. 17.190.1603
aperture=f5.6 focal length: 60.0 mm exposure 1/400 sec ISO: 2000